Variable length`Const`

length: <T>(
predicateFunction?: PredicateFunction<T>,
) => CollectorFunction<T, number> = count

Type declaration

- <T>(predicateFunction?: PredicateFunction<T>): CollectorFunction<T, number>
- Counts the number of elements in the source.
  Type Parameters
  - T
    Type of items in the source.
  Parameters
  - predicateFunction: PredicateFunction<T> = ...
    Predicate function to determine if an element should be counted.
  Returns CollectorFunction<T, number>
  Collector that counts the number of elements in the source.
  Example
```
const result = count<number>()([1, 2, 3]);
console.log(result); // 3
```